১৫৩৯১
The perimeter of a rectangular field is 72 meters. If the length is 6 meters more than twice the width, what is the area of the field?
উত্তর
260 m²
১৫৩৯২
Find the area of an isosceles triangle if its perimeter is equal to 28 cm and the ratio of the lateral side to the base is 2:3.
উত্তর
12 √7 cm²
১৫৩৯৩
In an examination, 70% students passed in Physics and 65% students passed in Chemistry. If 45% students passed in both subjects, and 42 students failed in both subjects, what is the total number of students?
উত্তর
420
১৫৩৯৪
If the difference between the circumference and diameter of a circle is 60 cm, then the radius of the circle is
উত্তর
14cm
১৫৩৯৬
A sequence S is defined by Sₙ = Sₙ₋₁ + Sₙ₋₂ - 3 for each integer n ≥ 3. If S₁ = 5 and S₂ = 0, what is the value of S₄?
উত্তর
-1
১৫৩৯৭
The first three terms in arithmetic sequences are 30, 33, and 36. What is the 80th term?
উত্তর
267
১৫৩৯৮
The sequence A is defined by Aₙ = Aₙ₋₁ + 2 for each integer n ≥ 2, and A₁ = 45. What is the sum of the first 100 terms in sequence A?
উত্তর
14400
১৫৩৯৯
In a geometric progression with positive terms, the sum of the second and third terms is 6, and the sum of the fourth and fifth terms is 54. What is the common ratio?
উত্তর
3